Home / 11,688.17-16,131.08-6,653.61

Finding the Fourth Proportional to 11,688.17, 16,131.08 and 6,653.61

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Solution

The fourth proportional to 11,688.17, 16,131.08 and 6,653.61 is: 9,182.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.17 : 16,131.08 = 6,653.61 : x
  2. Step 2: Convert to fraction form
    11,688.17/16,131.08 = 6,653.61/x
  3. Step 3: Cross multiply
    11,688.17x = 16,131.08 × 6,653.61
  4. Step 4: Simplify right side
    11,688.17x = 107,329,931.83
  5. Step 5: Solve for x
    x = 107,329,931.83/11,688.17
  6. Step 6: Final answer
    x = 9,182.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.